Plumbing device.



No. 652,962. Patented July 3, I900.

J. J. HILL. PLUMBING DEVICE.

(Application filed Apr. 11, 1900.)

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No. 652,962. Patented July 3, I900.

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UNITED STATES PATENT OFFICE.

JOHN J. HILL, OF DENVER, COLORADO.

PLUMBING DEVICE.

SPECIFICATION forming part of Letters Patent No. 652,962, dated July 3, 1900. Application filed April 11,1900. Serial No. 12,398. (No model.)

To aZZ whom it may concern:

Be it known that 1, JOHN J. HILL, a citizen of the United States, residing at Denver, in

the county of Arapahoe and State of Colorado,

have invented new and useful Improvements in Plumbing Devices, of which the following is a specification.

My invention relates to improvements in plumbing devices for use in timbering mine shafts, winches, stopes, or the like, where it may be necessary or desirable to establish an accurate plumb-point.

In timbering mine-shafts it is a matter of importance that the walls shall be absolutely Vertical. It frequently happens, however, in the common practice of hanging a plumb-line in the corner of the shaft that the line contacts with the more or less rough timbers used in the construction, which throws the line out of the direct vertical plane, leaving the matter of locating the corners of the lower timbers in each operation of timbering dependent more or less upon the skill of the workman in judging the proper positions with reference to the plumb as it may hang. The farther down the shaft is sunk the more difficult it becomes and the more skill is required to maintain the lines of the corners vertical, which results frequently in a poor and undesirable construction.

My object is to provide plumbing implements of novel and improved construction in the use of which the location of accurate plumb-points is rendered easy to accomplish and the difficulties above set forth are overcome.

In carrying out my invention I employ a plumb-line-suspending device, with means for positioning it accurately upon the upper corner of a structure, as upon the collar of a mine-shaft, and a companion plumb-point device for positioning the corners of lower timbers with reference to the plumb-line, and consequently in exact vertical line with the collar.

In the drawings, Figure 1 is a broken diagrammatic view illustrating the manner of employing my improvement in positioning the lower timbers or frame in ashaft; Fig. 2, a broken top plan view, enlarged, showing the plumb-line-suspending device secured to the shaft-collar; Fig. 3, a section on line 3 in Fig. 2, and Fig. 4 an enlarged. view of the plumb-point device.

A is the timbering orlining of a mine-shaft, A being the top frame or collar and A the lower frame of a set about to be put in place. In the operation of timbering, when the shaft is sunk a certain distance, depending upon the character of the formation below the last timbering, a frame or sill A is put in place in the bottom of the shaft and the gap between it and the next sill above then filled in with similar frames.

B is a plumb-line-suspending'device, comprising a base-plate a and parallel cheeks Z), provided with slots a, forming bearings for the shaft 01 of a spool e. In the location shown the base a is cut out to produce an opening f, presentinga tongue g, the edges of which are at an angle of forty-five degrees to the sides I), the apex being midway between the sides. The tongue is bent downward, as shown in Fig. 3, to present a square shoulder projecting below the base. In the center of the forward edge of the base a is a notch or guide-socket h.

C is a plumb-point device in the form of a carpenters square marked along its edges 2; with a scale. In the inner corner of the device O is a squared projection 75, the apex of which forms the plumb point. The said apex is at a point the same distance from both outer edges of the square and exactly the same distance from the outer corner thereof as is the base of the notch h from the point of the tongue g. The plumb-line D, with the plumb attached thereto, is wound upon the spool e.

The device B may be fastened rigidly in place upon the collar A by means of screws Zor otherwise, with its tongue g-fitting closely the corner of the collar. The shoulder formed by the tongue 9 renders it easy to position the device B accurately with reference to the collar. The plumb-line extends through the notch hand hangs suspended therefrom at a distance from the inner corner of the timbers sufficient to cause it to clear any projections due to uneven surfaces. The sill-frame A is caused to present a comparatively smooth and square corner, and to position it accurately with reference to the collar the square 0 is fitted into the corner of the frame, as

shown in Fig. 1, and the latter moved to cause the plumb-point 7a to register with the plumbline.

It is desirable in plumbing mine-shafts to employ two sets of my improved implements at diagonally-opposite corners, which facilitates the operation of placing the timbers at the corners with accuracy in vertical line with the corners of the collar. The scales upon the squared edges 2' are useful in determining distances while shifting the frame into position.

\Vhile I prefer to construct my improvements throughout as shown and described, they may be modified in the matter of details of construction without departing from the spirit of my invention as defined by the claims.

That I claim as new, and desire to secure by Letters Patent, is-

1. In a plumbing device, the combination of a plumb-line, a plnmb-line-suspending implement carrying a spool on which the line is wound and provided with a squared positioning edge and a projecting guide for the line, and a companion implement having a squared positioning edge and a projecting plumb-point conforming in relative dimensions with the positioning edge and guide of the suspending implement, substantially as set forth.

2. In a plumbing device, the implement B, having the squared projecting positioningtongue g, and projecting guide h, substantially as described.

3. In a plumbing device, the line-suspending implement B, having the squared proj ecting positioningtongue g, and projecting guide h, and a rotary line-holding spool upon the said implement, substantially asset forth.

4:. In a plumbing device, the combination with aplumb-line and plumb-line-suspending implement having the squared positioningtongue g and guide h, of the implement 0 having the plumb-point projection 70 and squared edges i, substantially as and for the purpose set forth.

5. In a plumbing device, the combination with a plumb-line and plnmb-line-snspending implement having the squared positioning-tongue g and guide h, of the implement 0 having the plumb-point projection 70 and squared edges '11 provided with scales, substantially as and for the purpose set forth.

JOHN J. HILL.

In presence of- H. O. BRooKs, J r., M. SELIGSOHN. 

